package com.ck.framework.config;
import com.ck.framework.security.filter.JwtAuthenticationTokenFilter;
import com.ck.framework.security.handle.AccessDeniedHandlerImpl;
import com.ck.framework.security.handle.AuthenticationEntryPointImpl;
import com.ck.framework.security.handle.LogoutSuccessHandlerImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.security.web.authentication.logout.LogoutFilter;
import org.springframework.web.filter.CorsFilter;

/**
 * @author ck
 * @date 2023/3/23 10:02
 */

/**
 * /**
 *      * anyRequest          |   匹配所有请求路径
 *      * access              |   SpringEl表达式结果为true时可以访问
 *      * anonymous           |   匿名可以访问
 *      * denyAll             |   用户不能访问
 *      * fullyAuthenticated  |   用户完全认证可以访问（非remember-me下自动登录）
 *      * hasAnyAuthority     |   如果有参数，参数表示权限，则其中任何一个权限可以访问
 *      * hasAnyRole          |   如果有参数，参数表示角色，则其中任何一个角色可以访问
 *      * hasAuthority        |   如果有参数，参数表示权限，则其权限可以访问
 *      * hasIpAddress        |   如果有参数，参数表示IP地址，如果用户IP和参数匹配，则可以访问
 *      * hasRole             |   如果有参数，参数表示角色，则其角色可以访问
 *      * permitAll           |   用户可以任意访问
 *      * rememberMe          |   允许通过remember-me登录的用户访问
 *      * authenticated       |   用户登录后可访问
 *      */

@EnableWebSecurity
//权限控制
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {


    /**
     * 自定义用户认证逻辑
     */
    @Autowired
    private UserDetailsService userDetailsService;

    /**
     * token认证过滤器
     */
    @Autowired
    JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;

    /**
     * 认证失败处理类
     */
    @Autowired
    private AuthenticationEntryPointImpl authenticationEntryPoint;

    /**
     * 授权失败处理类
     */
    @Autowired
    private AccessDeniedHandlerImpl accessDeniedHandler;

    @Autowired
    private LogoutSuccessHandlerImpl logoutSuccessHandler;

    @Autowired
    private CorsFilter corsFilter;

    /**
     * 强散列哈希加密实现
     */
    @Bean
    public BCryptPasswordEncoder bCryptPasswordEncoder()
    {
        return new BCryptPasswordEncoder();
    }
    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }



    /**
     * 身份认证接口
     */
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception
    {
        auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder());
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                //关闭csrf
                .csrf().disable()
                .exceptionHandling().
                //认证失败处理类
                authenticationEntryPoint(authenticationEntryPoint)
                //权限失败处理类
                .accessDeniedHandler(accessDeniedHandler)
                .and()
                //不通过Session获取SecurityContext
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()

                .authorizeRequests()
                //对于登录接口,验证码captchaImage、sendCode、getPubKey、login 允许匿名访问
                .antMatchers("/auth/login","/captchaImage","/sendCode","/rsa/getPubKey","/rsa/login","/register","/jmreport/**","/drag/**").permitAll()
                // 静态资源，可匿名访问
                .antMatchers(HttpMethod.GET, "/*.html", "/**/*.html", "/**/*.css", "/**/*.js").permitAll()
                .antMatchers("/swagger-ui.html", "/swagger-resources/**", "/webjars/**", "/*/api-docs", "/druid/**").permitAll()

                // 除上面外的所有请求全部需要鉴权认证
                .anyRequest().authenticated()
                .and()
                .headers().frameOptions().disable();
        // 添加Logout filter
        http.logout().logoutUrl("/logout").logoutSuccessHandler(logoutSuccessHandler);
        //把token校验过滤器添加到过滤器链中
        http.addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
        // 添加CORS filter
        http.addFilterBefore(corsFilter, JwtAuthenticationTokenFilter.class);
        http.addFilterBefore(corsFilter, LogoutFilter.class);
    }




    @Override
    public void configure(WebSecurity web) throws Exception {
        /**
         *  不走SpringSecurity的过滤器链，也就意味着不会将用户的信息记录在session中,因此尽量不要用这种方式进行资源放行
         *  web.ignoring() 是 Spring Security 中用于配置不受安全保护的请求路径的方法。
         *  可以将一些特定的请求路径排除在 Spring Security 的保护范围之外，即这些路径不会受到身份验证和授权的限制
         */

        web.ignoring();
//                .antMatchers("/**/");
    }
}
